The maintenance work on Hydra has completed.
On your side, you don't need to change anything, the new nodes will be automatically used for the newly started jobs. Access to the Hydra cluster has been reopened.

We have planned a downtime for HYDRA on September 25 that should last only a few hours.

We have created a global reservation on HYDRA to make sure that no job will be running at that moment. Jobs that can complete before the date will be executed and those with a walltime beyond September 25 will be maintained in the queue.

A cluster downtime is necessary to put in production a new network of 10 Gbps to access HYDRA storage (the work directory) which must be enabled in the GPFS storage system.

The GPFS Storage system will be used by 27 additional HYDRA compute nodes and one high memory node of 1.5 TB RAM which are ready to go in production. Hydra features now 2300+ cores.